Authentication of data in the field of works of art using blockchain technology

Arranging of seminars; Entertainment services, namely, arranging and conducting of competitions in the field of basketball; Entertainment services, namely, providing on-line computer games; Entertainment services, namely, providing an on-line computer game; Providing on-line digital publications in the nature of books in the field of science via the Internet; Providing on-line publications in the nature of e-books in the field of science; Providing on-line videos featuring music, not download...

greeting cards

MANIPULATIVE GAME THAT INCLUDES A GRIDWORK OF OPENINGS AND A PLURALITY OF PLAYING PIECES OF VARIOUS SIZES AND SHAPES AND COLORS THAT CAN BE DEPOSITED IN SAID GRIDWORK TO FORM DESIRED DESIGNS